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Dive into our publications and explore the science from the Environmental Health Program (Toxic Substances Hydrology and Contaminant Biology).

GeoHEALTH-USGS Newsletter

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The GeoHEALTH–USGS Newsletter—published since 2004—provides information on USGS science activities pertinent to safeguarding the health of fish, wildlife, domesticated animals, and people from environmental exposures to contaminants and pathogens.

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Featured Science Activities

USGS scientist sampling tap water from a public water supply

Lean about our Featured Science Activities through our pages that highlight science studies, publications, and results.

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Filter Total Items: 3746

Chemistry of selected high-elevation lakes in seven national parks in the western United States

A chemical survey of 69 high-altitude lakes in seven national parks in the western United States was conducted during the fallof 1999; the lakes were previously sampled during the fall of 1985, as part of the Western Lake Survey. Lakes in parks in the Sierra/southern Cascades (Lassen Volcanic, Yosemite, Sequoia/Kings Canyon National Parks) and in the southern RockyMountains (Rocky Mountain Nationa
Authors
David W. Clow, Robert G. Striegl, Leora Nanus, Alisa Mast, Donald H. Campbell, David P. Krabbenhoft
By
Ecosystems Mission Area, Water Resources Mission Area, Environmental Health Program, Toxic Substances Hydrology, Colorado Water Science Center, Upper Midwest Water Science Center, Mercury Research Laboratory

In-situ evidence for uranium immobilization and remobilization

The in-situ microbial reduction and immobilization of uranium was assessed as a means of preventing the migration of this element in the terrestrial subsurface. Uranium immobilization (putatively identified as reduction) and microbial respiratory activities were evaluated in the presence of exogenous electron donors and acceptors with field push−pull tests using wells installed in an anoxic aquife
Authors
John M. Senko, Jonathan D. Istok, Joseph M. Suflita, Lee R. Krumholz
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Linking diurnal cycles of river flow to interannual variations in climate

Many rivers in the Western United States have diurnal variations exceeding 10% of their mean flow in the spring and summer months. The shape and timing of the diurnal cycle is influenced by an interplay of the snow, topography, vegetation, and meteorology in a basin, and the measured result differs between wet and dry years. The largest interannual differences occur during the latter half of the m
Authors
Jessica D. Lundquist, Michael D. Dettinger
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Aggregate stability and size distribution

No abstract available. 
Authors
John R. Nimmo, K. Perkins
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Steady-state centrifuge [simultaneous determination of water transmission and retention properties--direct methods--laboratory]

No abstract available. 
Authors
John R. Nimmo, K. Perkins, A. M. Lewis
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Property-transfer models

No abstract available.
Authors
R. Haverkamp, John R. Nimmo, P. Reggiani
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Controlled liquid-volume [water retention and storage]

No abstract available.
Authors
K.A. Winfield, John R. Nimmo
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Miscellaneous methods [water retention and storage]

No abstract available.
Authors
John R. Nimmo, K.A. Winfield
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Guidelines for method selection (water retention and storage)

No abstract available.
Authors
John R. Nimmo
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Guidance on the use of passive-vapor-diffusion samplers to detect volatile organic compounds in ground-water-discharge areas, and example applications in New England

Polyethylene-membrane passive-vapor-diffusion samplers, or PVD samplers, have been shown to be an effective and economical reconnaissance tool for detecting and identifying volatile organic compounds (VOCs) in bottom sediments of surface-water bodies in areas of ground-water discharge. The PVD samplers consist of an empty glass vial enclosed in two layers of polyethylene membrane tubing. When samp
Authors
Peter E. Church, Don A. Vroblesky, Forest P. Lyford
By
Ecosystems Mission Area, Environmental Health Program, Toxic Substances Hydrology, New England Water Science Center

Fractured-rock aquifers, understanding an increasingly important source of water

Ground water is one of the Nation's most important natural resources. It provides drinking water to communities, supports industry and agriculture, and sustains streams and wetlands. A long record of contributions exists in understanding ground-water movement in sand and gravel aquifers; historically, these aquifers were easily accessible and the first to be investigated. With increased demand for
Authors
Allen M. Shapiro
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Glacial ice cores reveal a record of natural and anthropogenic atmospheric mercury deposition for the last 270 years

No abstract available.
Authors
David P. Krabbenhoft, Paul F. Schuster
By
Ecosystems Mission Area, Environmental Health Program, Toxic Substances Hydrology, Upper Midwest Water Science Center, Mercury Research Laboratory